Also, if you download one or the other, use the AdBlock extension/add-on. It does wonders. And I'm pretty sure it blocks CR video ads as well. If you're using Firefox, you can also download NoScript, but it take a while to figure out.

I heavily used Firefox for Crunchyroll and all my other stuff until I switched over to Chrome after upgrading to Windows 8. They are both great browsers in my opinion because there's some stuff from firefox I want on chrome and vice versa.

I used Firefox for a long, long time before but I've moved on to Chrome. Chrome is just so fast and simple to use for me; plus, it has AdBlock too so I don't see anything wrong with it. It depends, some people like the feel of Firefox better, some just like Chrome.